Which of the following is a sign of a concussion observed by others?

• A. Headache
• B. Nausea
• C. Dazed, confusion, clumsy movements
• D. Loss of consciousness

Answer: (C)

In concussion recognition, focus on signs that others can observe directly. When someone is dazed, appears confused, or moves clumsily after a hit, those outward behaviors indicate brain function disruption and can be seen by teammates, coaches, or officials right away. This makes them the most reliable observable signs in the moment. Headache and nausea are important, but they’re subjective symptoms that the person must report rather than signs others can confirm on the spot. Loss of consciousness is a serious observable sign, but the cluster of being dazed, confused, or clumsy captures a broader, readily noticed change in behavior that signals a concussion. If you see these signs, stop play and seek proper medical evaluation.